Abeaham mitchell



UNITED ST T-Es PATENT I OFFICE.

ABRAHAM MITCHELL, or BRADFORD, COUNTY. or XORK, ENGLAND.

METHOD OF MANUFAOTU'RING wovEN FABRICS.

SPECIFICATION forming part of Letters Patent No. 346,673, datd August 3, 1886.

Application filed November 19, 1885. Serial No. 183,367. (Specimens.l I I To all whom it may concern.- I

Be it known that I, ABRAHAM MITCHELL, a subject of the Queen of Great Britain and Ireland, and residing at Bradford, county of York, England, have invented certain Improvements in the Method of Manufacturing oven'Fabrics, of which-the following is a specification. 1

Theobject of my-invention is to produce, by an economical method, woven fabrics the so] faces of which have a wavy or'undulating appearance; and this object I attain in the manner which I will now proceed to describe.

For weaving the fabric, I'make use of a specially-prepared yarn or weft of any suitable fiber, the special featureof this yarn or weft being thatJinthe spinning operation it has been drawn'or stretched to a greater extent than it otherwise would be. 'For instance, a yarn or weft of what would be termed a twelve length of fiber is drawn or stretched to,'say, twelve and a-quarter or twelve; and a half. Such yarn or weft would under ordinary circu Instances be considered as bad yarn; but I designedly produce-this yarudrawn or stretched to an unusual length, W'ith such weft or yarn the piece is woven in the ordinary way'in an ordinary loom, and what is termed a straight piece is produced, having only a slightly-difi'erent appearance from apiece woven with straight yarn, or yarn drawn to the usual length. Thcpiece thus woven with stretched weft or yarn is subj ected immersed in water, with the result that the stretched weft or yarn shr'inks, and acrim'py or wavy or undulating effect is produced in the fabric, and with the further efl'ectthat it it is next to impossible to follow the direction of the weft.

In the case of mohair weft and cotton warp the fabric produced in themanner. described has all'the appearance of silk, due, no doubt, L

The herein-described method of making fabrics having a wavy or undulating appearance, said method consisting in first stretching or drawingthe yarn to an unnatural length during the operation of spinning, 'theii weavinga fabric with this stretchedyarn, and finally subjecting the fabrictso woven to the action of moisture, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

Witnesses:

JOHN VAUGH, T l s RD. B. NIGHQLLS.-

ABRAHAM MITCHELL. 

